Replace CombineTraceProtos with new Combiner#1291

Merged

mdisibio merged 7 commits intografana:mainfrom

mdisibio:combiner

Feb 24, 2022

Commits on Feb 8, 2022

Create trace.Combiner which has better performance on multiple/larger trace deduping
mdisibio
committed

Commits on Feb 17, 2022

Commits on Feb 18, 2022

Review feedback, delete CombineTraceProtos
mdisibio
committed

Commits on Feb 23, 2022

Wait until first call to alloc span map, using actual input size
mdisibio
committed

Commits on Feb 24, 2022